Improvement in ladders and staging for artisans



UNITED STATES PATENTv OFFICE.

CHARLES lll'ONSON, Uh NEW HAVICNCONNEC'ITGU'I.

IMPROVEMENT iN LADDx-:Rs AND STAGING FOR ARTISANS.

Speciilcation forming part of Letters Patent No. 34,3l3, dated February 4, 186?,

ZU a# wiz-mit it may confirm-11.1:

a vertical and longitudinal section, of it.

My said invention isintended for various purposes, ivbeingl particularly useful to masons, plasterers, joiners, or various other artisans. It may be employed 'to support one or moreJpersons ina field, and to enable them to gather fruit from trees, or "to perform other acts.'

Thef nature or principle of my said invention consists in a combination of a plat-form or stage, two sets ot' parallel bars or ladders, p a base or foot-connection, and a leg-stand or pair of stands or their` mechanical equivalent,

the whole being arranged andso as to operate substantially as hereinafter explained.

ln the drawings, A is a platform or stage,

arranged horizontally and parallel to a horizontal base-frame or foot-connection B, and is joined thereto by two ladders C D or sets of parallel bars, each bar (t of which is so applied, both to the 4stage and base-frame, as to becapable of being turned in a vertical planeand on the bolt or pin b, by which the connection is effected. The two bars a a of cach set are furnished with a series of rounds or cross-rods c c c, Etc., which extend horizontally from one bar to the other and constitute, with-'the said. bars, a ladder, the axes of the joining bolts or pins of the ladders, the platform, and base-framebeing parallel and horizontal.- One ladder ,is parallel to the other, and the twol are connected by one or more legstands l in such manner as to not only give support to the vtwo ladders when each in inclined positions, asshown inFig. 2, but to admit ot' their being moved from such inclincd positions upward and either into vertical positions, as exhibited in such ligure by red lines, or into other inclined positions, as

denoted by thebluc lines of such figure, the amount ot' declination from the vertical being dependent on the length of such leg-stand.

The leg-stands, as shown in the drawings, are placed on opposit'elsides of the stage or platform, each leg-stand having its horizontal bai-j connected to the two ladders by means of joint-pins g g. Each vertical leg of each of the said stands may be constructed so as to be yariable in its length, or, in other Words, with a foot slide or bar h to slide into the rest of the stand and be capable oflbeing clamped in position therein by a screw t'. Furthermore, the platform A may be constructed with two openings or holes la cleading through it, there being one of them over each of the ladders. Nhere the ladder-stage is made lvery large,

this construction of its platform will often be found advantageous, Whether as aording4 ready means of access to the platform from either of the ladders or for any other useful purpose.

The uses of the above-specified artisans stage are various, andv need not -be further enumerated.

The combination of the two sets of parallel bars or ladders, a base or foot-connection, and a leg-stand or pair of stands, or the mechanical equivalent therefor, the whole constituting a ladder or artisans stage, substantially as de scribed.

CHARLES MONSON'.

Witnesses:

AA. S. Monson, l W. M. WHITNEY. 

